{"id":282515,"date":"2024-10-19T19:05:58","date_gmt":"2024-10-19T19:05:58","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iso-ts-212312019\/"},"modified":"2024-10-25T15:48:50","modified_gmt":"2024-10-25T15:48:50","slug":"bsi-pd-iso-ts-212312019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iso-ts-212312019\/","title":{"rendered":"BSI PD ISO\/TS 21231:2019"},"content":{"rendered":"

This document specifies representative materials suitable for the determination of the performance characteristics, including uncertainty, during the initial assessment of a quantitative method, used in a laboratory, for physico-chemical water analysis.<\/p>\n

This document focuses on five main types of water:<\/p>\n